TUCoPS :: HP/UX :: n-023.txt

Buffer Overrun Vulnerability in Samba Server2.2 (CIAC N-023)

             __________________________________________________________

                       The U.S. Department of Energy
                   Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN

                  Buffer Overrun Vulnerability in Samba Server2.2                

December 11, 2002 21:00 GMT                                       Number N-023
[Revised 12 December 2002]
______________________________________________________________________________
PROBLEM:       A buffer overrun vulnerability has been discovered in Samba 
               Server2.2.
PLATFORM:      Multiple vendor products might be affected when used in 
               conjunction with the Samba Server2.2 product.   
DAMAGE:        If exploited, the vulnerability has the potential to allow an 
               attacker to gain root access. 
SOLUTION:      Check with your vendor for platform-specific solutions. Samba 
               has released Samba v2.2.7 which addresses this vulnerability
			   found in versions 2.2.2 through 2.2.6.  For more information,  
			   visit Samba's web site at: 
			   http://www.samba.org/samba/whatsnew/samba-2.2.7.html 
______________________________________________________________________________
VULNERABILITY  The risk is MEDIUM. Though the vulnerability has the potential 
ASSESSMENT:    to gain root access, there is no known exploit. 
______________________________________________________________________________
LINKS: 
 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/n-023.shtml 
  
______________________________________________________________________________
[***** Start Hewlett-Packard Bulletin HPSBUX0212-230 *****]

Document ID:  HPSBUX0212-230
Date Loaded:  20021210
      Title:  SSRT2437 Sec. Vulnerability in CIFS/9000 Samba Server2 2


 -----------------------------------------------------------------
 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN: HPSBUX0212-0230
 Originally issued: 10 Dec 2002
 SSRT2437 Sec. Vulnerability in CIFS/9000 Samba Server2.2
 -----------------------------------------------------------------


NOTICE: There are no restrictions for distribution of this Bulletin
provided that it remains complete and intact.


The information in the following Security Bulletin should be
acted upon as soon as possible.  Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.


 ------------------------------------------------------------------
PROBLEM: CIFS/9000 Server 2.2 buffer overflow vulnerability. 


IMPACT: Potential root access.


PLATFORM: HP 9000 servers running the following CIFS Server versions:


          - A.01.08
          - A.01.08.01
          - A.01.09


SOLUTION: Update to CIFS Server 2.2 version A.01.09.01


MANUAL ACTIONS: Yes - Update to version A.01.09.01


AVAILABILITY: CIFS Server 2.2 version A.01.09.01 is currently
              available from:
          <http://www.software.hp.com/NSM_products_list.html>


 ------------------------------------------------------------------


 A. Background
    A buffer overrun has been discovered in the HP CIFS Server
    version A.01.09 and earlier. There is no known exploit of
    this vulnerability, and the Samba Team has not been able to
    craft one themselves.
    Nevertheless, the Samba Team has judged the vulnerability
    significant and announced the defect and fix in their latest
    release.  HP has integrated the fix into the latest release
    of CIFS Server 2.2
    For additional details, see:
      http://www.samba.org/samba/whatsnew/samba-2.2.7.html


 B. Recommended solution
    Upgrade to CIFS Server 2.2 version A.01.09.01
    which is currently available from:


    <http://www.software.hp.com/NSM_products_list.html>


    It is the product B8725AA, CIFS/9000 Server 2.2.c.


 
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 D. To report new security vulnerabilities, send email to


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    Please encrypt any exploit information using the
    security-alert PGP key, available from your local key
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    of 'get key' (no quotes) to security-alert@hp.com.


 ------------------------------------------------------------------


(c) Copyright 2002 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.


 ________________________________________________________________
--
-----End of Document ID:  HPSBUX0212-230--------------------------------------



[***** End Hewlett-Packard Bulletin HPSBUX0212-230 *****]
_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Hewlett-Packard and Samba for the 
information contained in this bulletin.
_______________________________________________________________________________


CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
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